Graphical timeline of the universe

This more than twenty billion years timeline of our universe shows the best scientific estimates of the occurrence of events since its beginning, up until anticipated events in the near future. Zero of the scale is the present day. A large step on the scale is one billion years, a small step one hundred million years. The past time have a minus sign, e.g. the oldest rock on Earth was formed AbOUT four billion years ago and this is marked at -4e+09 years. The theoretical "Big Bang" event happened 13.7 billion years ago, see age of the Universe.

  • Years from now
  • Origin of our universe, Big Bang theory
  • Reionization, first stars began to shine
  • Oldest star in Milky Way
  • Formation of the first galaxies
  • Earliest Population I stars
  • Ancient supernova possibly~triggers formation of the Sun
  • Giant planets formed
  • Sun ignites hydrogen fusion~4.63 billion years ago (or 4.57)
  • Formation of the Earth, 4.57 billion~years ago (or 4.54)
  • Zircon, oldest mineral
  • Oldest rock~formation on Earth
  • Evolution of multicellular life
  • Evolution of mammals
  • The present day
  • Sun becomes too hot for life~on Earth's surface
  • Earth's oceans have evaporated
  • Sun has increased its~emitted power by 40%
  • Moon Triton crashes into~its planet Neptune
  • Collision risk~Earth - Mars - Mercury
  • Sun ignites helium fusion,~starting with helium flash
  • Sun casts out its outer layers,~making a planetary nebula,~leaving the hot core in the~center, emitting 100 times~more power than Sun today
  • Sun has cooled down to the ~same power as today. It will ~continue cooling until it ~becomes a Black dwarf.
  • Formation of the Milky Way galactic disk
  • Formation of~Terrestrial planets
  • Late Heavy~Bombardment, while~planet Neptune~migrates outwards~away from Sun
  • Milky Way and Andromeda~galaxies may collide and merge~[[Elliptical galaxy|to elliptical] one]]
  • Sun as Protostar
  • Sun as Main-sequence star
  • Sun as Red giant, emitting~2700 times more power than now.~Earth probably swallowed by Sun.
  • Sun as~Horizontal~branch star
  • Sun as Asymptotic~giant branch star
  • Sun as White dwarf
  • Water~delivered~to Earth]]
  • Emergence of~Life on Earth
  • Life on Earth
  • Measures are taken~to cope with the~heating sun.~Otherwise only:~ ~Shielded~Life on Earth?
  • Life on Titan?
  • Precambrian
  • Life on Mars?
  • Very Shielded ~Life on Mars?~if planet still exists
  • Earth's geological time scale of
  • Eons:
  • Phanerozoic
  • Proterozoic
  • Archean
  • Hadean
  • Eras:
  • Cenozoic
  • Mesozoic
  • Paleozoic
  • Basin Groups
  • Cryptic
  • Moon's:
  • Upper Imbrian
  • Lower Imbrian
  • ZOOM OUT~The Stelliferous Era
  • Mars':
  • The Primordial Era~PREVIOUS

See also

ro:Cronologia grafică a universului